Rotary cutter



2'SheAets-Shee l L. E. PARENT ROTARY GUTTER Filed sept. 7, i927 y V S May 31, 1932.

May 31, 1932.

L. E. PARENT 1,861,064

ROTARY CUTTER Filed Sept. 7, 1927 2 Sheets-Sheet 2 IrllI www Patented May 31, 1932 Qumran STATESA PATENT OFFICE LOUIS E. PAR-ENT, OF CLABEMONT, NEW HAMPSHIRE, ASSIGNOR T0 CLAREMONT WASTE.

MANUFACTURING COMPANY, A CORPORATION OF N EW HAMPSHIRE ROTARY CUTTER Application filed September 7, 1927. Serial No. 218,009.

My invention relates to rotary cutters. It has for its object to provide improved cooling means for the tool carrying bed of K such a cutter, and'more-particularly a flock '5 cutter, whereby the operating temperature of the device is kept down, this being of especial importance in aflock cutter because of the danger from re. A still further ob- KV ject of my invention is to provide improved cooling means of the tank type wherein the temperature of the water adjacent the bed 1s substantially reduced, air pockets are minimized, a greater area of the bed is cooled, and f the tool adjusting means is protected from the Water. These andy other objects and advantages of my improved construction will, however, hereinafter more fully appear.

In ythe. accompanying drawings I have A shown, for purposes of illustration, one embodiment which my invention may assume in practice.

In these drawings,- Figure 'l is a central longitudinal secv tional view of aflock cutter equipped with '25 my improvement;

Fig. 2 is a transverse sectional view of the same; i y, n Fig. 3 is a sectional view on line 3-3 of y Fig. 4; f Fig, 4 is a sectional view on line 4-4 of Fig. 3, and j Fig. 5 is a'sectional view on line 5-5 of Fig. 3.

In this illustrative construction, I have shown a Hock cutter of well known type including a tool carrying cylinder 1 cooperating with knives 2`carried in a bed 3 and disposed beneath the same and adjustable Jfrom Y the bottom by means of members 4 disposed as usualy in series extending ltransversely across 'the bed and accessible through transverse slots 5 in the bottom of the bed.

In my improved construction it will be noted that the bed 3 is suspended in a water tank 6 in the form of a series of communicating water chambers separated by transverse baffles 7 and dis/posedV beneath the bed V3 and extended up onopposite sides of the latter so as to cool not only Vthe whole of the bottom i and sides of the bed, but areas in, Contact with the flock at and above each side of the same. Herein, this tank 6 is relatively deep,

ythough its depth may obviously be varied,

and provided withla removable bottom plate 8, suitably attached thereto to cooperate with the baffles 7 to form a series of water chambers. The plate 8 is also suitably connected to the members forming the-walls of the tank 6` byY attaching means, herein in the form of screws 9, it being understood that suitable lagging or the like (not shown) is provided to prevent leakage. Herein it will also 'bef noted that an inlet pipe 10 delivers upward through one end of the ,bottom plate 8, herein the left hand end (Fig. l) and into the left` hand chamber, and that the immediately adjacent baiile 7 on the right is provided with an aperture 11 at one end and near itstop through which the water may flow to the next chamber. of this second chamber is in turn provided i with an aperture 12 at the top of the opposite The baiiie 7 on the opposite side end thereof, while the next right hand battle I is provided with an aperture 13, and the next With an aperture 14, all arranged in staggered relation. Thus it will be noted that, since these apertures are disposed one on one side of the knife bed and the nextL on the other, the cooling water'entering, through the pipe 10 iscaused to flow into the first chamber t on each side of the bed. i Attention is alsoL directed to the fact that each of the slots 5 ink the bottom of the bed 3 is alsov covered on its under side by suitable lagging 17 adapted to protect the members 4 from the cooling Water and removable .when desired to permit access to be had tothe members 4. ,Y f Y Thus it Willbe observed that the cool water` entering at the bottom of the left hand end of the bed ows through a battled path transversely back and forth through the bed, and that the heated water is discharged through each baflie at the top, thereby tending to keep the bed at minimum temperature. More specifically, the water is caused to circulate in such manner as to prevent the concentration of immobile heated water at the top, i. e. adjacent the bottom of the bed, and the consequent overheating of the bed heretofore resulting where a tank has been placed under the bed, with pipes at the opposite ends of the bottom of the tank so that the cool Water simply by-passes beneath the heated water; my improved baffling and circulating means requiring circulation of the water adjacent the bed and constant replacement of any heated water by cool water in such manner as to result in a substantially lower temperature of the water adjacent. the bed and of the bed and knives. It will be observed that in my improved construction any tendency of the device to become airbound, with the released air at the top and under the bed, isminimized. Attention is also directed to the fact that the cooling water acts upon the whole knife bed, bottom and sides, and to the further fact that, at the same time that the Water underlies the adjusting means for the bed knives, it is also made possible to protect these in such manner as to keep them readily adjustable when desired. It will of course also be understood that whenever it is desired to adjust. the knives in the bed it is only necessary to remove the bottom plate 8 and lagging strips, and that when the bottom plate 8 is removed it is entirely unnecessary tok disconnect the discharge piping. These and other advantages of my improved construction will, however, be cleariy apparent to those skilled in the art.

Thilo I have in this application specifically described one embodiment which my invention may assume in practice, it will be understood that the invention is not` limited thereto but may be modified and embodied in various other forms without departing from its spirit or the scope of the appended claims. Y

What I claim as new and desire to secure by Letters Patent is:

1. In combination, a tool carrying bed, an underlying water tank therefor, supply and discharge connections for said tank, and

means in the tankand having portions pro` viding a passageway in the top of the tank extending between said supply and discharge connections, for circulating the water in the to of said' tank and insuring a circulation reiiitive to the rest of the water in the tank of said waterin the top of the latter which is in contact with the bed.

2. In combination, a tool carr 7ing bed, an underlying water tank, and ba e means in the tank and supply and discharge connections for the latter co-operating with said baile means insuring circulation of the water in the tank which is adjacent said bed.

3. In combination, a water tank, a tool carrying bed suspended therein and having its bottom and sides cooled thereby, and co. operatin means in said tank and supplying water t ereto and discharging the same therefrom; maintaining a circulation of the water which is in contact with said bed.

4. A tool carrying bed having an underlying water chamber and baiiie means in the latter providing apertures therein disposed in staggered relation to produce a tortuous flow in contact with said bed.

5. A tool carrying bed having an underlying water chamber and bailie means in the latter providing apertures therein disposed in staggered relation to produce a tortuous flow in contact with said bed, said battles being transversely dis osed.

6. A tool carrying bed having an underlying water chamber and transverse bafie means in the latter having apertures therein disposed in staggered relation, said apertures being disposed at the top of said baiile means.

7. A tool carrying bed having a plurality of water chambers beneath the same sepurated by transverse baffles having apertures at their upper ends, said apertures being disposed in staggered relation and one end chamber having an inlet and the other end chamber an outlet.

8. A tool vcarrying bed having a plurality of water chambers beneath the same separated by transverse bafiles having apertures at their upper ends, said apertures being disposed in staggered relation and one end chamber having an inlet and the other end chamber an outlet, said inlet being a bottom inlet and the outlet a top outlet.

9. In combination, a tool carrying bed, a series of cooling tanks underlying the same and extending upward beyond the sides thereof, said tanks having communication with one another through apertures disposed in staggered relation in said upwardly extending portions.

10. In combination, a tool carrying bed, a series of cooling tanks underlying the same and extending upward beyond the sides thereof, said tanks having communication with one another through apertures disposed in staggered relation in said upwardly extending portions, a bottom inlet connected to one end tank, and a top outlet connected to the other.

11. In combination, ya tool carrying bed, a series of cooling tanks underlying the same and extending upward beyond the sides thereof, said tanks having communication with one another through apertures disposed in staggered relation in said upwardly extending portions, a bottom inlet connected to one end tank, and a top outlet connected to the other, said top outlet comprising outlet passages connected to each of said upwardly extending portions of said end tank.

12. Inconibination, a knife bed adapted to have its bottom and sides suspended in cooling watera tank receiving the same and immersing said bottom and sides, and means for maintaining a circulation of the water in contact with the bottom and sides of said bed.

13. In combination, a knife bed having its bottom and sides suspended in cooling water, a tank receiving ythe same, and means for maintaining a circulation of the water in contact with said bed including transverse bafiies having staggered apertures above the bottom of said bed.

14C. In combination, a knife bed having its bottom and sides submerged in cooling water, a tank receiving the same, and means for maintaining a circulation of the water in contact with said bed including transverse bafies having staggered apertures above the bottom ofl said bed, a bottom inlet at one end of the tank, and top outlet means at the opposite end thereof above the sides of the bed.

15. A water cooledtool bed having a water chamber beneath the same and provided with transverse baliies having apertures alternately at opposite sides of the saine and an inlet 'at one end thereof and outlet means at the opposite end thereof.

16. A water cooled tool bed having a water chamber beneath the same and provided with transverse baffles havingapertures alternata ly at opposite sides of the same and an inlet at one end thereof, and outlet means at the opposite endy thereof said inlet being at the bottom and said o utlet means at thetop.

17. In a water cooled tool bed, means forming a tool chamber, transverse ribs below the saine and vat opposite sides thereof, said ribs having staggered apertures along the length of the bed and at the sides thereof, a bote tom under said ribs forming a water chamber, and inlet and discharge means at opposite ends of said too-l chamber.

18. In combination, a tool carrying bed having adjusting means accessible from its bottom, sealing m-eans for said adjusting means removable from the Vbottom of said bed, and a cooling water tank in which said bed and sealing means are submerged and having provision for permitting access to said sealing means.

19. A tool carrying adjusting means extending into said slots, means sealing said slots and removable from the bottom of said bed, and cooling means supplying cooling water to the under side of bed provided with slots `in its bottom, knives carried thereby having j 21. In combination, a water tank, and a tool carrying concave immersed therein with its bottom and its sides within the liquid and laterally extending portions above its sides likewise cooled by the liquid.

22. In combination, a water tank, a tool carrying concave immersed therein with both its bottom and its sides within the liquid,

and means for prescribing acirculation of liquid in contact with the sides and bottom thereof.

23. In combination, a water tank, a tool carrying concave projecting into the same, and circulating means inhibiting flow along the bottom of the tank and prescribing a path of liquid flow in contact with said concave.

24. In combination, a water tank, a tool carrying concave extending into the same, and water circulating means including baffle means in said tankso disposed as to divide the tank into communicating compartments.

25. In combination, a water tank, a tool carrying concave extending into the same, and water circulating means including baffle means in said tank so disposed as to divide the tank into communicating compartments having communication only adjacent sald concave.

26. In combination, al water tank, a tool carrying concave extending into the same and having its tools adjustable from its bottom, and water circulating means including baffle means in said tank so disposed as to divide the tank into communicating compartments through certain of which said tools are adjustable.

27. The combination with a water tank, of a tool carrying concave having its bottom in the latter and apertures in its bottom, tool adjusting means in said apertures, and sealing means covering said apertures and between said adjusting means and the liquid in said tank and removable' from the bottom of the concave.

28. In combination, a tool carrying bed,

an underlying water tank therefor, tank iiow in contact with the bed and transversely of the latter of the water film in the' tank in contact with the bed. Y

In testimony whereof I aiiix my signature.

LOUIS E. PARENT. 

